.nav {
    height: 40px;
    background-color: #678876;
}

.nav ol {
    display: flex;
    justify-content: space-around;
    line-height: 40px;
}

.nav ol li a {
    color: #ffffff;
}

.nav ol li a:hover {
    color: sandybrown;
    border-bottom: 1px sandybrown solid;
}


/* 内容 */

.article {
    padding-top: 40px;
    margin-bottom: 400px;
}

.article h3 {
    height: 50px;
    background-color: #546F60;
    line-height: 50px;
    text-indent: 20px;
    font-size: 22px;
    font-weight: 400;
    color: #ccc;
}

.article h3 a {
    color: #ccc;
    float: right;
    margin-right: 40px;
}

.article h3 a:hover {
    color: red;
}

.article table {
    width: 1200px;
    margin-top: 40px;
    border-top: 2px solid #D7C2AC;
    border-bottom: 1px solid #D7C2AC;
    border-collapse: collapse;
}

.article table tr {
    line-height: 50px;
    border-top: 2px solid #D7C2AC;
    border-bottom: 1px solid #D7C2AC;
    background-color: #F7EFD9;
}

.footer .w {
    background-color: #F9F9F9;
}